What's In My Jar
Trinny London Overnight Clarity
Trinny London

Trinny London Overnight Clarity

Efficacy100/100IrritancyMedium
See all ingredients

Works for

Anti-aging
Retinal, Niacinamide + 2 more
Works well
What the product description says
“Starting to notice those first fine lines and still struggling with pesky hormonal breakouts?”
Source: N/A

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains retinal, niacinamide.

Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.

RetinalHeroEffect: HighOne step removed from the biologically active in skin form of vitamin A. Once converted to the retinoic acid in the skin, retinal is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. Concentrations of 0.05% and 0.1% are shown to be effective. It can, however, be irritating~0.4–0.6%
NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~4.4–5.4%
TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.2–0.35%
Lactic acidUnder-dosedAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~0.15–0.25%
Anti-blemish
Niacinamide, Retinal + 1 more
Works well
What the product description says
“Starting to notice those first fine lines and still struggling with pesky hormonal breakouts?”
Source: N/A

This product can help reduce breakouts and clogged pores because it contains the following ingredient: niacinamide, retinal. These ingredients is used for treating acne and can have a noticeable effect.

In addition, this product contains potassium azeloyl diglycinate. It can help in reducing blemishes, even though it is less effective.

NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~4.4–5.4%
RetinalHeroEffect: HighOne step removed from the biologically active in skin form of vitamin A. Once converted to the retinoic acid in the skin, retinal is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. Concentrations of 0.05% and 0.1% are shown to be effective. It can, however, be irritating~0.4–0.6%
Potassium azeloyl diglycinateKey activeEffect: HighA derivative of azelaic acid. It is obtained by reacting the chloride of azelaic acid with two molecules of glycine (an amino acid) and potassium hydroxide. It is less studied than azelaic acid, but the available research suggests that it also can be effective in reducing skin redness, hyperpigmentation and blemishes. There are claims that it is more bio-available and more effective than azelaic acid, but no comparison study is available. Potassium azeloyl diglycinate is better soluble in water compared with azelaic acid. Because of this property, products with potassium azeloyl digclycinate can have a nicer texture~3.1–3.8%
Anti-oxidation
Side benefit · Glutathione, Chlorella vulgaris extract + 4 more
Works well

This product contains antioxidants (glutathione) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).

GlutathioneKey activeEffect: HighA peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin~0.25–0.45%
Chlorella vulgaris extractEffect: LowA plant extract that can help to attract water to the upper layer of the skin and might have some anti-oxidant and anti-inflammatory properties~0.5–0.75%
Rubus chamaemorus seed oilEffect: LowA berry extract that can have some anti-oxidant properties. It helps to preserve product formulations and improve their smell. It can be irritating~0.4–0.6%
Lonicera caprifolium flower extractEffect: LowA plant extract that might help neutralize free radicals in skin. Can contain volalite oils and be irritating~0.2–0.35%
Lonicera japonica flower extractEffect: LowA plant extract that might help neutralize free radicals in skin. Can contain volalite oils and be irritating~0.2–0.4%
TocopherolUnder-dosedPure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.2–0.35%
Evens skin tone
Side benefit · Retinal, Niacinamide + 3 more
Works well

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: retinal.

In addition, this product contains glutathione, niacinamide, potassium azeloyl diglycinate. This ingredient (ingredients) might help reduce hyperpigmentation, but the effect, if any, is likely to be small.

Keep in mind that you would need to apply any topical skincare targetted at hypigmentation consistently for a couple of months to get a result. No topical skincare product can help get rid of hyperpigmentation (including post-acne marks and age spots) instantly.

RetinalHeroEffect: HighOne step removed from the biologically active in skin form of vitamin A. Once converted to the retinoic acid in the skin, retinal is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. Concentrations of 0.05% and 0.1% are shown to be effective. It can, however, be irritating~0.4–0.6%
NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~4.4–5.4%
Potassium azeloyl diglycinateKey activeEffect: HighA derivative of azelaic acid. It is obtained by reacting the chloride of azelaic acid with two molecules of glycine (an amino acid) and potassium hydroxide. It is less studied than azelaic acid, but the available research suggests that it also can be effective in reducing skin redness, hyperpigmentation and blemishes. There are claims that it is more bio-available and more effective than azelaic acid, but no comparison study is available. Potassium azeloyl diglycinate is better soluble in water compared with azelaic acid. Because of this property, products with potassium azeloyl digclycinate can have a nicer texture~3.1–3.8%
GlutathioneKey activeEffect: HighA peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin~0.25–0.45%
Lactic acidUnder-dosedAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~0.15–0.25%
Moisturizing
Side benefit · Niacinamide, Caprylic/capric triglyceride + 13 more
Works well

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. The following ingredients in this product do the job: sodium lactate, glucose.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: caprylic/capric triglyceride, coco-caprylate.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: niacinamide

NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~4.4–5.4%
Caprylic/capric triglycerideKey active· Emollient, OcclusiveEffect: HighA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~7.1–8.6%
Potassium azeloyl diglycinateKey activeEffect: MediumA derivative of azelaic acid. It is obtained by reacting the chloride of azelaic acid with two molecules of glycine (an amino acid) and potassium hydroxide. It is less studied than azelaic acid, but the available research suggests that it also can be effective in reducing skin redness, hyperpigmentation and blemishes. There are claims that it is more bio-available and more effective than azelaic acid, but no comparison study is available. Potassium azeloyl diglycinate is better soluble in water compared with azelaic acid. Because of this property, products with potassium azeloyl digclycinate can have a nicer texture~3.1–3.8%
Coco-caprylateKey active· EmollientEffect: MediumAn emollient that softens skin and creates a nice product texture~2–2.4%
UndecaneKey active· EmollientEffect: MediumHelps create a non-greasy finish on the skin~1.4–1.8%
Chlorella vulgaris extractKey activeEffect: MediumA plant extract that can help to attract water to the upper layer of the skin and might have some anti-oxidant and anti-inflammatory properties~0.5–0.75%
GlutathioneKey activeEffect: HighA peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin~0.25–0.45%
GlucoseKey active· HumectantEffect: MediumHelps attract water to the upper layer of the skin. Could be helpful in restoring the skin barrier function~0.2–0.35%
Sodium lactateKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product~0.1–0.2%
Arachidyl alcohol· EmollientEffect: LowUsed to soften the upper layer of the skin and create a thicker product consistency~1–1.2%
Behenyl alcohol· Emollient, OcclusiveEffect: LowNon-drying alcohol that helps water and oil mix together. Also serves as an emollient~0.75–1.1%
Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~0.45–0.7%
Butylene glycol· HumectantEffect: LowUsed to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin~0.25–0.5%
TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.2–0.35%
Lactic acidUnder-dosedAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~0.15–0.25%

Can it cause trouble?

Irritancy
16 flagged ingredients
Medium risk
We flagged 16 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Rubus chamaemorus seed oilA berry extract that can have some anti-oxidant properties. It helps to preserve product formulations and improve their smell. It can be irritatingHigh~0.4–0.6%est.
RetinalOne step removed from the biologically active in skin form of vitamin A. Once converted to the retinoic acid in the skin, retinal is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. Concentrations of 0.05% and 0.1% are shown to be effective. It can, however, be irritatingHigh~0.4–0.6%est.
Lonicera caprifolium flower extractA plant extract that might help neutralize free radicals in skin. Can contain volalite oils and be irritatingHigh~0.2–0.35%est.
Lonicera japonica flower extractA plant extract that might help neutralize free radicals in skin. Can contain volalite oils and be irritatingHigh~0.2–0.4%est.
Benzyl alcoholA preservative. Can be used to mask unpleasant smell. Can be irritatingHigh~0.05–0.1%est.
Caprylic/capric triglycerideA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerinMedium~7.1–8.6%est.
Coco-caprylateAn emollient that softens skin and creates a nice product textureMedium~2–2.4%est.
UndecaneHelps create a non-greasy finish on the skinMedium~1.4–1.8%est.
TridecaneHelps create a dry, non-greasy finish of the skinMedium~1.1–1.4%est.
Chlorella vulgaris extractA plant extract that can help to attract water to the upper layer of the skin and might have some anti-oxidant and anti-inflammatory propertiesMedium~0.5–0.75%est.
Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~0.45–0.7%est.
Sodium stearoyl glutamateHelps oil and water mix togetherMedium~0.4–0.6%est.
GlutathioneA peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skinMedium~0.25–0.45%est.
Lactic acidAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)Medium~0.15–0.25%est.
Sodium lactateHelps attract water to the upper layer of the skin. Is often used to adjust the pH level of the productMedium~0.1–0.2%est.
HydroxyacetophenoneUsed to increase effectiveness of preservativesMedium~0.1–0.15%est.
Comedogenic
1 ingredient rated 2 or more on the 0–5 pore-clogging scale
1 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Chlorella vulgaris extractA plant extract that can help to attract water to the upper layer of the skin and might have some anti-oxidant and anti-inflammatory properties3/5~0.5–0.75%est.
Alternatives
The closest match we found
BODY SMOOTHING EXFOLIATOR
Skincare by Dr V BODY SMOOTHING EXFOLIATOR
Closest match70% match
$40.04
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Ingredients

Filter by role to see what each ingredient is doing.

Water~45–55%
Formula
Irritation risk
Low

Plain old water

More about Water
Caprylic/capric triglyceride~7.1–8.6%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin

More about Caprylic/capric triglyceride
Niacinamide~4.4–5.4%
Hero · Moisturizing, Anti-blemish
Irritation risk
Low
Works for
Evens skin toneAnti-agingMoisturizingAnti-blemishReduces irritationAntibacterialAnti-inflammatoryReduces redness

Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production

More about Niacinamide
Potassium azeloyl diglycinate~3.1–3.8%
Key active
Irritation risk
Low
Works for
Anti-blemishEvens skin toneAnti-inflammatoryMoisturizing

A derivative of azelaic acid. It is obtained by reacting the chloride of azelaic acid with two molecules of glycine (an amino acid) and potassium hydroxide. It is less studied than azelaic acid, but the available research suggests that it also can be effective in reducing skin redness, hyperpigmentation and blemishes. There are claims that it is more bio-available and more effective than azelaic acid, but no comparison study is available. Potassium azeloyl diglycinate is better soluble in water compared with azelaic acid. Because of this property, products with potassium azeloyl digclycinate can have a nicer texture

More about Potassium azeloyl diglycinate
Propanediol~2.4–2.9%
Formula
Irritation risk
Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol
Coco-caprylate~2–2.4%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

An emollient that softens skin and creates a nice product texture

More about Coco-caprylate
Cyclodextrin~1.7–2%
Formula
Irritation risk
Low

A type of sugar that is used to support delivery of active ingredients and can enhance their penetration into the skin without disrupting the skin's barrier

More about Cyclodextrin
Undecane~1.4–1.8%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps create a non-greasy finish on the skin

More about Undecane
Tridecane~1.1–1.4%
Irritant · medium
Irritation risk
Medium

Helps create a dry, non-greasy finish of the skin

More about Tridecane
Arachidyl alcohol~1–1.2%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to soften the upper layer of the skin and create a thicker product consistency

More about Arachidyl alcohol
Behenyl alcohol~0.75–1.1%
Formula
Irritation risk
Low
Works for
Moisturizing

Non-drying alcohol that helps water and oil mix together. Also serves as an emollient

More about Behenyl alcohol
Arachidyl glucoside~0.55–0.85%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Arachidyl glucoside
Chlorella vulgaris extract~0.5–0.75%
Key activeComedogenic 3/5Irritant · medium
Irritation risk
Medium
Comedogenicity
3/5
Works for
MoisturizingAnti-oxidationAnti-inflammatory

A plant extract that can help to attract water to the upper layer of the skin and might have some anti-oxidant and anti-inflammatory properties

More about Chlorella vulgaris extract
Azelamidopropyl dimethyl amine~0.45–0.7%
Formula
Irritation risk
Low
More about Azelamidopropyl dimethyl amine
Rubus chamaemorus seed oil~0.4–0.6%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A berry extract that can have some anti-oxidant properties. It helps to preserve product formulations and improve their smell. It can be irritating

More about Rubus chamaemorus seed oil
Pentylene glycol~0.45–0.7%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Used to preserve products, dissolve other ingredients and create a nice product texture

More about Pentylene glycol
Retinal~0.4–0.6%
Hero · Anti-aging, Evens skin tone, Anti-blemishIrritant · high
Irritation risk
High
Works for
Anti-agingAnti-blemishEvens skin tone

One step removed from the biologically active in skin form of vitamin A. Once converted to the retinoic acid in the skin, retinal is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. Concentrations of 0.05% and 0.1% are shown to be effective. It can, however, be irritating

More about Retinal
Polyacrylate crosspolymer-6~0.35–0.6%
Formula
Irritation risk
Low
More about Polyacrylate crosspolymer-6
Sodium stearoyl glutamate~0.4–0.6%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Sodium stearoyl glutamate
Butylene glycol~0.25–0.5%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin

More about Butylene glycol
Glutathione~0.25–0.45%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Evens skin toneMoisturizingAnti-oxidation

A peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin

More about Glutathione
Lonicera caprifolium flower extract~0.2–0.35%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A plant extract that might help neutralize free radicals in skin. Can contain volalite oils and be irritating

More about Lonicera caprifolium flower extract
Lonicera japonica flower extract~0.2–0.4%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A plant extract that might help neutralize free radicals in skin. Can contain volalite oils and be irritating

More about Lonicera japonica flower extract
Glucose~0.2–0.35%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin. Could be helpful in restoring the skin barrier function

More about Glucose
Tocopherol~0.2–0.35%
Under-dosed
Irritation risk
Low
Works for
Anti-oxidationMoisturizingAnti-inflammatoryAnti-aging

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

More about Tocopherol
Sodium phytate~0.15–0.3%
Formula
Irritation risk
Low

Used to stabilize product formulations

More about Sodium phytate
Lactic acid~0.15–0.25%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
Evens skin toneMoisturizingExfoliationAnti-aging

An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)

More about Lactic acid
Sodium lactate~0.1–0.2%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product

More about Sodium lactate
Hydroxyacetophenone~0.1–0.15%
Irritant · medium
Irritation risk
Medium

Used to increase effectiveness of preservatives

More about Hydroxyacetophenone
Benzyl alcohol~0.05–0.1%
Irritant · high
Irritation risk
High

A preservative. Can be used to mask unpleasant smell. Can be irritating

More about Benzyl alcohol
Ingredient list view

Water, Caprylic/capric triglyceride, Niacinamide, Potassium azeloyl diglycinate, Propanediol, Coco-caprylate, Cyclodextrin, Undecane, Tridecane, Arachidyl alcohol, Behenyl alcohol, Arachidyl glucoside, Chlorella vulgaris extract, Azelamidopropyl dimethyl amine, Rubus chamaemorus seed oil, Pentylene glycol, Retinal, Polyacrylate crosspolymer-6, Sodium stearoyl glutamate, Butylene glycol, Glutathione, Lonicera caprifolium flower extract, Lonicera japonica flower extract, Glucose, Tocopherol, Sodium phytate, Lactic acid, Sodium lactate, Hydroxyacetophenone, Benzyl alcohol

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Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
Trinny LondonOvernight ClarityYOUR PRODUCTSkincare by Dr VBODY SMOOTHING EXFOLIATORNaturiumAzelaic Topical Acid 10%Transparent LabPIH Sun Spot Fading Treatment
Match—70%70%68%
Price—$40.04$20.00$18.74
Shared key ingredients—4 of 72 of 72 of 7
Key difference—Vitamin C3-O-Ethyl Ascorbic AcidSalicylic Acid
Irritancy Medium Medium Low Low
Drying alcohol————
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Product summary

"Trinny London - Overnight Clarity" is effective for: Evens skin tone, Anti-aging, Moisturizing and Anti-blemish

Ingredient callouts

  • A good concentration of Niacinamide (4.40% - 5.40%). Niacinamide is a well-studied multi-tasking active. It is stable, and can work well in almost any hydrating formulation. There is solid evidence that Niacinamide can help support skin barrier, regulate oil production and reduce acne and clogged pores. It also helps to fight photodamage and improve the skin tone, reducing pigmentation marks.
  • This product contains an effective form of Retinoids (vitamin A): retinal 0.40% - 0.60%. Retinoids are potent multitasking actives. They work to improve and prevent early signs of aging, reduce hyperpigmentation (age spots and post-acne marks), and prevent inflamed blemishes and clogged pores. The downside of Retinoids is that they can be irritating. If you are not already using a Retinoid in your routine, it is best to start slowly and apply the Retinoid product only a few times per week. If your skin tolerates it well, you can gradually increase the frequency to daily.
  • Potassium Azeloyl Diglycinate (3.10% - 3.80%). It is a derivative of Azelaic Acid. It is less studied than Azelaic Acid, but the available research suggests that it also can be effective in reducing skin redness, hyperpigmentation and blemishes. There are claims that it is more bio-available and more effective than azelaic acid, but no comparison study is available. Potassium Azeloyl Diglycinate is better soluble in water compared with Azelaic Acid. Because of this property, products with Potassium Azeloyl Digclycinate can have a nicer texture.
  • Humectants (sodium lactate 0.10% - 0.20%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 18 studies and safety reviews.

  1. 1
    Niacinamide - mechanisms of action and its topical use in dermatologyncbi.nlm.nih.gov
  2. 2
    Gehring, W. (2004). Nicotinic acid/niacinamide and the skin. Journal of Cosmetic Dermatology, 3(2), 88–93. doi:10.1111/j.1473-2130.2004.00115.x ncbi.nlm.nih.gov
  3. 3
    Clinical and instrumental assessment of the effects of a new product based on hydroxypropyl chitosan and potassium azeloyl diglycinate in the management of rosaceancbi.nlm.nih.gov
  4. 4
    A Preliminary Clinical Evaluation of a Topical Product for Reducing Slight Rosacea Imperfectionsdovepress.com
  5. 5
    Azeloyl-Glycine: A new active in skin disequilibriumresearchgate.net
  6. 6
    Formulation and evaluation of the cream made from potassium azeloyl diglycinate as an anti-agingresearchgate.net
Trinny London Overnight Clarity
Trinny LondonOvernight Clarity
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